198335
20181203023458.0
doi
10.1103/PhysRevB.89.115113
1098-0121
ISI
000332510300006
ARTICLE
Empirical Monod-Beuneu relation of spin relaxation revisited for elemental metals
College Pk
Amer Physical Soc
2014
2014
7
Journal Articles
Monod andBeuneu [P. Monod and F. Beuneu, Phys. Rev. B 19, 911 (1979)] established the validity of the ElliottYafet theory for elemental metals through correlating the experimental electron spin resonance linewidth with the so-called spin-orbit admixture coefficients and the momentum-relaxation theory. The spin-orbit admixture coefficients data were based on atomic spin-orbit splitting. We highlight two shortcomings of the previous description: (i) the momentum-relaxation involves the Debye temperature and the electron-phonon coupling whose variation among the elemental metals was neglected, (ii) the Elliott-Yafet theory involves matrix elements of the spin-orbit coupling (SOC), which are however not identical to the SOC induced energy splitting of the atomic levels, even though the two have similar magnitudes. We obtain the empirical spin-orbit admixture parameters for the alkali metals by considering the proper description of the momentum relaxation theory. In addition we present a model calculation, which highlights the difference between the SOC matrix element and energy splitting.
Szolnoki, L.
FBS Swiss Fed Inst Technol EPFL, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland
Kiss, A.
Hungarian Acad Sci, Wigner Res Ctr Phys, H-1111 Budapest, Hungary
240227
Forro, L.
105148
FBS Swiss Fed Inst Technol EPFL, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland
Simon, F.
Budapest Univ Technol & Econ, Dept Phys, H-1111 Budapest, Hungary
89
11
Physical Review B
252321
LPMC
U10142
252456
LPCM
U10143
oai:infoscience.tind.io:198335
SB
article
EPFL-ARTICLE-198335
EPFL
REVIEWED
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